The captain wasn't the only one worried that robots might be coming for us all. Fellow Twitter user Gavin Hightower tweeted that he was "lying in bed about to fall asleep when Alexa on my Amazon Echo Dot [let] out a very loud and creepy laugh." Was he afraid? "There's a good chance I get murdered tonight," he added.

Lying in bed about to fall asleep when Alexa on my Amazon Echo Dot lets out a very loud and creepy laugh... there’s a good chance I get murdered tonight.

And a tweet by David Woodland suggested that having Alexa sign a nondisclosure agreement might not be a bad idea. "Having an office conversation about pretty confidential stuff and Alexa just laughed," he wrote. "She simply just laughed. It was really creepy."

Having an office conversation about pretty confidential stuff and Alexa just laughed. Anybody else ever have that?

It didn't chime as if we had accidentally triggered her to wake. She simply just laughed. It was really creepy.

Of course, she could just be chuckling because right now she's dominating her rivals -- Apple's Siri and Google's Assistant. She may also be a little giddy from the media glow as she looks to become the aural figurehead for the net-connected "smart home" generation.

Late Wednesday afternoon, an Amazon representative provided an additional statement that reads in part: "In rare circumstances, Alexa can mistakenly hear the phrase 'Alexa, laugh.' We are changing that phrase to be 'Alexa, can you laugh?' which is less likely to have false positives, and we are disabling the short utterance 'Alexa, laugh.' We are also changing Alexa's response from simply laughter to 'Sure, I can laugh' followed by laughter."